8-7-2020 RACO DE OLLA, VALENCIA - COMMON TERN (Sterna hirundo)

The Common tern (Sterna hirundo) is a seabird that has a circumpolar distribution. it has four subspecies breeding in temperate and subarctic regions of Europe, Asia, and North America. Its large population and huge breeding range mean that this species is classed as being of least concern, although numbers in North America have declined sharply in recent decades.

Known for its attractive plumage and graceful flight, Common terns have a slender body and a smoothly rounded head, and long pointed wings. Their breeding plumage is light silvery-gray upperparts and clear black outer primaries on its wingtips. Outside the breeding season, the birds keep some of their distinguishable black cap, but their forehead and face turn white. Their legs and bill turn black, losing their orange-red coloration. Male and female are similar in appearance throughout the year. Juvenile Common terns have pale grey upper wings with a dark carpal bar. The crown and nape are brown, and the forehead is ginger, wearing to white by autumn. The upper parts are ginger with brown and white scaling, and the tail lacks the adult's long outer feathers. Birds in their first post-juvenile plumage, which normally remain in their wintering areas, resemble the non-breeding adult but have a duskier crown, dark carpal bar, and often very worn plumage. By their second year, most young terns are either indistinguishable from adults, or show only minor differences such as a darker bill or white forehead.

Common terns occur from northern Canada to the Caribbean Sea in the south, throughout Europe, Northern Asia, the Middle East and North Africa. Outside of the mating season, these birds winter along the coasts of South America and Central America, along Africa’s coast and the Arabian Peninsula, as well as on islands in the Indian Ocean and throughout Australasia and much of Southeast Asia. They breed on sand spits, beaches and low-lying inshore islands. They also nest inland near slow-flowing rivers, and lakes in open country. This species favors areas that have close shallow waters where they can fish. During migration, they are mainly seen along coasts, at freshwater inland lakes and in estuaries. During winter, they are mostly coastal, in warm tropical and subtropical waters.

Common terns are diurnal birds and they live in colonies with no clear hierarchy among them, with all seeming to be equal. Although Common terns all migrate and live together, the family unit is responsible to feed and care for its own eggs and chicks, and individuals will often defend feeding territories. This species forages by flying above water and hovering, often plunge-diving to catch prey under the surface. It will also swim as it picks up food from the surface of the water or just below it. A highly migratory bird, it leaves the breeding grounds for the wintering sites typically from August to October, soon after all the chicks fledge. These birds communicate mostly by means of their unusual, hoarse voices, having three different and distinct calls. Communication during mating is mainly visual and/or tactile.

8-7-2020 RACO DE OLLA, VALENCIA - COMMON SHELDUCK (FEMALE) (Tadorna tadorna)

The common shelduck, Tadorna tadorna, is a waterfowl species that graces the Euro-Siberian region with its presence. It is a medium-sized bird, akin to a small, short-necked goose, and is quite the sight with its white plumage contrasted by chestnut patches and a black underbelly. The head and neck are a dark, iridescent green, and the bill is a reddish-pink, with the male sporting a conspicuous knob on the forehead during the breeding season. Pink feet complete the ensemble, making this bird a striking figure in its habitat.

To identify the common shelduck, look for the distinctive reddish-pink bill and pink feet. The male, especially in breeding plumage, has a bright red bill with a prominent knob. The female is slightly smaller and has white facial markings. Both sexes have a white body with chestnut patches, a black belly, and a dark green head and neck. In flight, the green and chestnut secondary feathers become visible, contrasting with the predominantly white underwings.

The common shelduck is found in a variety of wetland habitats, including temperate lakes and rivers, as well as estuaries and tidal mudflats in winter. It has a particular fondness for salt marshes and estuaries and is known to breed in rabbit burrows, tree holes, and even haystacks.

This species is widespread across temperate Eurasia. It breeds in temperate regions and migrates to subtropical areas for wintering. Some populations remain resident in the westernmost parts of Europe, while others undertake movements to moulting grounds like the Wadden Sea.

The common shelduck is a sociable bird, often seen in large moulting flocks that can number up to 100,000 individuals. It is known for leaving its young in crèches supervised by a few adults. The species is also covered by the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), highlighting its ecological importance.

The vocalization of the common shelduck is a loud, unmistakable honk, which can be heard over considerable distances.

During the breeding season, the male's bill becomes particularly vibrant, and the species is known to nest in a variety of locations, from rabbit burrows to tree holes.

While the common shelduck is quite distinctive, it could potentially be confused with other shelduck species. However, its unique coloration and size generally make it easy to distinguish.

The common shelduck feeds on a variety of items, including mollusks and small aquatic creatures, which it often forages for in the mudflats during low tide.

The IUCN Red List classifies the common shelduck as Least Concern, indicating that, currently, there are no immediate threats to its population numbers on a global scale.

8-7-2020 RACO DE OLLA, VALENCIA - GREATER FLAMINGO (Phoenicopterus roseus)

https://www.inaturalist.org/taxa/73222-Phoenicopterus-roseus

8-7-2020 RACO DE OLLA, VALENCIA - BLACK WINGED STILT (JUVENILE) (Himantopus himantopus)

https://www.inaturalist.org/taxa/4835-Himantopus-himantopus

8-7-2020 RACO DE OLLA, VALENCIA - BLACK WINGED STILT (Himantopus himantopus)

The Black-winged Stilt, Himantopus himantopus, is a slender wader known for its strikingly long, pink legs and contrasting black-and-white plumage. This elegant bird is a member of the avocet and stilt family, Recurvirostridae.

Adult Black-winged Stilts measure 33–36 cm in length. They possess a long, thin black bill and display a distinctive black and white coloration. The head and neck are predominantly white, with variable black markings depending on the sex and subspecies. Males typically have a glossy or greenish sheen on their black backs, while females exhibit a more brownish tinge. During flight, their long legs trail behind, and their wingbeats are steady.

These birds favor marshes, shallow lakes, and ponds as their breeding grounds. They are also known to inhabit coastal areas during migration and in the winter months.

The Black-winged Stilt has a wide range, extending across Europe, Asia, and Africa. Some populations migrate to coastal regions in winter, while others in milder climates may remain resident or engage in short-range movements.

Black-winged Stilts are often seen foraging in shallow waters, gracefully picking insects and crustaceans from the surface. They are known to nest in small groups, sometimes alongside avocets, and exhibit a variety of courtship behaviors, including intricate displays and duets.

The flight call of the Black-winged Stilt is a sharp and clear kleek, typically heard during its aerial maneuvers.

Nests are simple bare spots on the ground near water. These birds are communal nesters and may breed in loose colonies. They have been known to breed as far north as Britain, with recent successful breeding events recorded in Southern and Northern England.

The Black-winged Stilt can be confused with other stilt species, such as the Black-necked Stilt (H. mexicanus) in the Americas, the White-backed Stilt (H. melanurus), and the Pied Stilt (H. leucocephalus) in Australasia and New Zealand.

Their diet consists mainly of insects and crustaceans, which they deftly pick from the water's surface or from wet sand.

The IUCN lists the Black-winged Stilt as Least Concern, indicating a stable global population. However, they are protected under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds, highlighting the importance of international cooperation in their conservation.

8-7-2020 L'ESTANY DE CULLERA, VALENCIA - EURASIAN COOT (Fulica atra)

https://www.inaturalist.org/taxa/482-Fulica-atra

8-7-2020 L'ESTANY DE CULLERA, VALENCIA - MALLARD X MUSKOVY DUCK (Anas platyrhynchos × cairina moschata)

The cross between a Mallard (Anas platyrhynchos) and a Muscovy Duck (Cairina moschata) produces a unique hybrid often called a Mulard or Mule Duck. Because these two species belong to different genera, their offspring are almost always sterile, meaning they cannot reproduce.Quick Comparison & Hybrid Types

Mule Duck: Produced when the father is a Muscovy and the mother is a Mallard (or Mallard-derived breed like a Pekin). These are typically larger and used in the commercial meat industry.

Hinny: Produced when the father is a Mallard and the mother is a Muscovy. These are less common and generally smaller than Mule Ducks.

Key Facts & CharacteristicsAppearance: 

Hybrids often exhibit a "mixed" look. They may have the iridescent green sheen of a Mallard head but with the larger body and slight red or black caruncles (fleshy growths) around the bill typical of a Muscovy.

Voice: They are generally quieter than Mallards. While female Mallards are famous for their loud quack, these hybrids may only produce soft hisses, trills, or muffled quacks.

Behavior: They often display a blend of habits. They may prefer terrestrial foraging like a Muscovy but are also capable swimmers like a Mallard.

Commercial Use: In agriculture, Mulards are highly valued for their meat and foie gras production. They are considered hardier and grow faster than many purebred ducks.

Commonality: While rare in the wild, they are frequently seen in urban parks and lakes where domestic ducks of both species are often abandoned and interbreed.

8-7-2020 L'ESTANY DE CULLERA, VALENCIA - MALLARD (MALE) (Anas platyrhynchos)

The Mallard, or wild duck (Anas platyrhynchos), is a familiar and widespread dabbling duck with a presence across temperate and subtropical regions of the Americas, Eurasia, and North Africa. It has also been introduced to parts of the Southern Hemisphere. The male is renowned for its iridescent green head and white collar, while the female sports a brown-speckled plumage. Both sexes boast a speculum—a patch of feathers with iridescent purple or blue hues bordered by white. The Mallard's length ranges from 50 to 65 cm, with a wingspan of 81 to 98 cm, and it typically weighs between 0.7 and 1.6 kg.

Males during the breeding season are unmistakable with their glossy green heads, white collars, and purple-tinged brown breasts. Females are mottled brown with buff cheeks and an eye-stripe. Both sexes have the distinctive speculum on their wings. The male's bill is yellowish-orange tipped with black, while the female's is darker, ranging from black to mottled orange and brown.

Mallards are found in a variety of wetlands, including parks, small ponds, rivers, lakes, and estuaries. They prefer water depths less than 0.9 meters and are drawn to areas with aquatic vegetation.

8-7-2020 L'ESTANY DE CULLERA, VALENCIA - EURASIAN COOT (JUVENILE) (Fulica atra)

https://www.inaturalist.org/taxa/482-Fulica-atra

8-7-2020 L'ESTANY DE CULLERA, VALENCIA - EURASIAN COOT (FEMALE AND JUVENILE) (Fulica atra)

The Eurasian coot is found on freshwater lakes and ponds and has adapted well to urban environments, often seen in city parks and gardens with water bodies.

This bird has a broad range across the Old World, including Europe, Asia, Australia, New Zealand, and parts of North Africa. It is a resident in milder regions but migrates south and west from much of Asia during winter.

The Eurasian coot is less secretive than many rails, often visible on open water or grasslands. It is territorial and aggressive during the breeding season, with both parents defending their territory. In non-breeding seasons, coots may form large flocks. They are reluctant flyers, preferring to run across water surfaces, and are known for bobbing their heads while swimming.

This species is known for its noisy demeanor, producing a variety of crackling, explosive, or trumpeting calls, which are often heard at night.

Coots build bulky, sometimes floating nests, concealed in vegetation or in the open. Both sexes construct the nest, with the male gathering materials. Clutches typically contain 6-10 buff-colored eggs speckled with black or dark brown. Both parents incubate the eggs, which hatch after 21-24 days. Chicks are precocial and nidifugous, with distinctive orange-red tips on their down.

8-7-2020 L'ESTANY DE CULLERA, VALENCIA - EUROPEAN MOORHEN (Gallinula chloropus)

The common moorhen, known scientifically as Gallinula chloropus, is a bird of the rail family, Rallidae. It is a bird of striking appearance, with a mix of black and brown plumage, a white under-tail, and white streaks along its flanks. Its legs are a vibrant yellow, and it sports a distinctive red frontal shield. The bill is a matching red with a yellow tip. Juveniles are a duller brown and do not have the red shield.

Adult moorhens can be identified by their red frontal shield, which has a rounded top and fairly parallel sides. The tailward margin of the red unfeathered area is smoothly curved. Their yellow legs and the combination of their black and brown plumage with white markings make them quite distinctive. The young are browner and lack the red shield, making them less conspicuous.

The common moorhen is found in a variety of wetland habitats, including marshes, ponds, canals, and lakes that are rich in vegetation. It is also known to inhabit city parks with suitable water bodies.

The common moorhen (Gallinula chloropus), also known as the waterhen or swamp chicken, is a bird species in the rail family (Rallidae). It is distributed across many parts of the Old World.

The common moorhen lives around well-vegetated marshes, ponds, canals and other wetlands. The species is not found in the polar regions or many tropical rainforests. Elsewhere it is likely the most common rail species, except for the Eurasian coot in some regions.

The closely related common gallinule of the New World has been recognized as a separate species by most authorities, starting with the American Ornithologists' Union and the International Ornithological Committee in 2011.

The moorhen is a distinctive species, with predominantly black and brown plumage, with the exception of a white under-tail, white streaks on the flanks, yellow legs and a red frontal shield. The bill is red with a yellow tip. The young are browner and lack the red shield. The frontal shield of the adult has a rounded top and fairly parallel sides; the tailward margin of the red unfeathered area is a smooth waving line. In the related common gallinule (Gallinula galeata) of the Americas, the frontal shield has a fairly straight top and is less wide towards the bill, giving a marked indentation to the back margin of the red area.

8-7-2020 ULLAL DE BALDOVI, ALBUFERA - LITTLE GREBE (Tachybaptus ruficollis)

The Little Grebe, or Tachybaptus ruficollis, known colloquially as the dabchick, is the smallest European member of the grebe family. This diminutive water bird measures a mere 23 to 29 centimeters in length and is a common sight in open bodies of water across its range.

In the summer, the adult Little Grebe is a sight to behold with its dark upper parts and a striking rufous coloration on the neck, cheeks, and flanks, complemented by a bright yellow gape. Outside of the breeding season, the plumage turns to a more subdued brownish-grey. Juveniles can be identified by their yellow bills tipped with black and streaked cheeks. In winter, the species is recognizable by its buff plumage, darker back and cap, and distinctive rear end.

8-7-2020 EL PALMAR, VALENCIA - ATLANTIC BLUE CRAB (Callinectes sapidus)

Callinectes sapidus, commonly known as the blue crab, Atlantic blue crab, or, regionally, the Maryland blue crab, is a species of crab native to the waters of the western Atlantic Ocean and the Gulf of Mexico, and introduced internationally.

C. sapidus is of considerable culinary and economic importance in the United States, particularly in Louisiana, the Carolinas, the Chesapeake Bay, Delaware, and New Jersey. It is Maryland's largest commercial fishery and has been designated its state crustacean. Due to overfishing and environmental pressures some of the fisheries have seen declining yields, especially in the Chesapeake Bay fishery.

Unlike the other fisheries affected by climate change, blue crab is expected to do well; warming causes better breeding conditions, more survivable winters, and a greater range of habitable areas on the Atlantic coast. Whether this will have negative effects on the surrounding ecosystems from an increased crab population is still unclear.

2-7-2020 ROSSELL, CASTELLON - ROCK BUNTING (FEMALE) (Emberiza cia)

The rock bunting (Emberiza cia) is a passerine bird in the bunting family Emberizidae, a group now separated by most modern authors from the finches, Fringillidae.

The genus name Emberiza is from Old German Embritz, a bunting. The specific cia is from a local Italian name for this bird, from zirlare, "to chirp".

It breeds in northwest Africa, southern Europe east to central Asia, and the Himalayas. It also breeds locally in central Europe. It is partially migratory, with northern populations wintering further south, mainly within the breeding range of the resident southern populations. It is a rare wanderer to western Europe.

2-7-2020 ROSSELL, CASTELLON - ROCK GRAYLING BUTTERFLY (Hipparchia alcyone)

The Rock Grayling (Hipparchia alcyone or H. semele) is a master-camouflage butterfly found in dry, rocky, and woodland habitats across Europe, particularly in the south and Finland. It rarely shows its dark brown and orange-spotted upper wings, preferring to keep them closed to blend into stones or bark.

Key Facts about the Rock Grayling Butterfly

Camouflage Specialist: Their wings have an intricate grey-and-black pattern underneath (cryptic coloring) that mimics bark or stone, making them nearly invisible when resting.

Behavior: They almost never open their wings, preferring to sit in sunny spots to regulate body temperature.Habitat: They favor warm, dry environments, particularly pine woods, oak groves, and rocky areas, often seen in southern Europe and mountainous regions (up to 1900 m).

Diet: Caterpillars feed on grasses such as Festuca and Arrhenatherum.

Life Cycle: They are univoltine, meaning they produce one generation per year, flying from June to August.

Identification: They have a large wingspan (\(4.6 - 6\text{ cm}\)) and feature prominent black "eyespots" with white centers on their forewings, used to startle predators.

Conservation: While not immediately threatened globally, their populations are experiencing declines, particularly in northern Europe.

2-7-2020 ROSSELL, CASTELLON - GREAT BANDED GRAYLING BUTTERFLY (Brintesia circe)

The Great Banded Grayling (Brintesia circe) is a large, distinctive Nymphalidae butterfly found in Central/Southern Europe and Western Asia, recognized by its white-banded, dark wings. Active from June to October in dry, sunny grasslands, it often rests with closed wings, using cryptic coloration for camouflage.

These butterflies fly in one generation from June to September feeding on nectar of flowers. Larvae feed on various herbaceous plants (mainly on Anthoxanthum, Bromus, Festuca and Sesleria species). The young larvae overwinter.

The species can be found in central and southern Europe (Spain, France, Italy, Greece, southern Germany and Poland), in Anatolia and the Caucasus up to Iran.

These butterflies prefer light woodland, grasslands bordering forest edges and generally dry and bushy environments, at an altitude of 0–1,600 metres (0–5,249 ft) above sea level.

Key Facts about the Great Banded Grayling:

Appearance: Large wingspan (\(65–80\text{ mm}\)), with females generally larger. The wings are dark brown/black with a prominent, broad white band across both wings and a black, white-ringed eyespot on the forewing.

Habitat: Prefers sunny, dry, and shrubby areas, including light woodlands, rocky hillsides, and flower-rich grasslands at altitudes from \(0\) to \(1,600\) meters.

Behavior: Known for a strong, rapid flight. They rarely open their wings while resting, camouflaging against rocky or dry ground. Males frequently consume mineralized moisture from damp patches.

Flight Period: Generally flies in one generation from late June to mid-October.

Lifecycle & Diet: The larva feeds on various grasses, including Festuca, Bromus, and Lolium. The species overwinters as a caterpillar.Adaptation: As a response to hot, dry summers, some populations, particularly females, may undergo a period of aestivation, reducing activity during peak heat.

Distribution: Found across Southern and Central Europe (e.g., France, Italy, Spain, Croatia) and Western Asia (Turkey, Caucasus, Iran).

Appearance Note: It is frequently mistaken for other graylings like the Woodland Grayling (Hipparchia fagi) or Rock Grayling (Hipparchia hermione), but the white band is a key identifier.

2-7-2020 ROSSELL, CASTELLON - MEADOW BROWN BUTTERFLY (Maniola jurtina)

The meadow brown (Maniola jurtina) is a butterfly found in the Palearctic realm. Its range includes Europe south of 62°N, Russia eastwards to the Urals, Asia Minor, Iraq, Iran, North Africa and the Canary Islands. The larvae feed on grasses.

There is marked sexual dimorphism in this species. The upperside of the male is uniformly light brown with a black ocellus centered white at the apex of the forewing, while the female has a tawny patch more or less extended around this ocella. The underside forewing is ochre-colored bordered with dark beige with the same ocelli at the apex in the male, while the hindwing is greyish to brown with a more or less orange band in the female. The males are also much more active and range far about, while females fly less and often may not move away from the area where they grew up.

3-7-2020 ALDEAROQUETA, CASTELLON - COMMON HOUSE MARTIN (Delichon urbicum)

The Western House Martin (Delichon urbicum), sometimes known as the Common House Martin, is a migratory passerine bird belonging to the swallow family. It is characterized by a blue head and upperparts, a distinctive white rump, and pure white underparts. This species exhibits sexual dimorphism, with both sexes appearing similar, and juveniles displaying a sooty black coloration with white-tipped wing coverts and quills.

Adults measure approximately 13 cm in length, with a wingspan ranging from 26 to 29 cm and an average weight of 18.3 grams. They possess brown eyes, a small black bill, and pink toes and exposed leg parts. The white rump and underparts are particularly noticeable in flight, aiding in distinguishing them from other swallows.

The Western House Martin favors open country with low vegetation, such as pastures, meadows, and farmland, often near water. It is also found in urban areas and can nest in city centers if air quality permits.

This bird breeds across Europe, North Africa, and the Palearctic, migrating to sub-Saharan Africa and tropical Asia for the winter. It is a broad-front migrant, traveling during daylight and feeding on insects in flight.

The Western House Martin is a social bird, often breeding colonially with nests built in close proximity. It is known for its aerial agility, which it uses to evade predators such as the Eurasian Hobby.

The male's song is a soft twitter of melodious chirps, while the contact call is a hard "chirrrp." The alarm call is a shrill "tseep."

Nests are constructed from mud pellets under eaves or similar overhangs on buildings, usually in colonies. The species is known to produce two broods per year, with four to five white eggs per brood. Juveniles fledge after 22 to 32 days and are fed by parents for about a week thereafter.

The Western House Martin can be confused with the Asian House Martin (D. dasypus) and the Nepal House Martin (D. nipalense), but it is the only one with a pure white rump and underparts.

The diet consists primarily of insects caught in flight, with a preference for flies and aphids. Hunting typically occurs within 450 meters of the nest and often near open ground or water.

The Western House Martin is classified as Least Concern by the IUCN, with an extensive range and large population. However, there are indications of population fluctuations and declines in certain regions, attributed to factors such as weather, pesticides, and competition for nesting sites.

30-6-2020 MONTE CORONA, VALENCIA - MEDITERRANEAN PALE GLOW-WORM (Nyctophila reichii)

Nyctophila reichii (Mediterranean firefly/glow-worm) is a common Lampyrid beetle found in the Mediterranean region (Iberia, France, Italy, Balkans). Known for, sexual dimorphism, females are flightless, larger, and glow green to attract flying males in summer. Larvae are predatory, feeding on snails and slugs, and can emit light. 

Key Facts about Nyctophila reichii:

Appearance & Dimorphism: Females are roughly 4 cm long, larvae-like (larviform), and wingless, while males are smaller and winged.

Luminescence: Both larvae and adult females glow to attract mates, producing a cold green light from the last abdominal segments.

Habitat: Commonly found in Mediterranean, mountainous, and semi-arid regions.

Diet: Larvae are specialized predators of snails and slugs.

Activity Period: Adults are active from the second half of June to the second half of August.

Defense: They possess eversible organs that help protect them against predators.

Commonality: They are among the most common glow-worms in Catalonia and the southern/eastern Iberian Peninsula.

Interaction: They are non-toxic to humans.